Tecfluid LU Series - Manual (Page 14)

14
5 CONFIGURATION
To change a digit, touching the key ( ↑) the flashing digit will be incremented. When the
value of 9 is reached on the next increment it go to zero. With the key (
←) we move to the
next digit to the left. If we are on the seventh digit we go back to the first digit.
When we have the required data on the screen, touching the two keys ( ↑) & (←) at the
same time, the data will be stored into memory and the next screen appears.
If data does not have to be saved, the key (
□
) is used to jump to the next screen without
making any changes in the configuration data even if digits or working modes have been
changed.
There ara two programming menus. The first one is related to the adaptation of the
instrument to the installation. The second allows to change the parameters that affect the
behaviour of the instrument.
To enter the first menu, keys (
↑) and (←) must be pressed at the same time.
5.1 Measuring units
The instrument can indicate the measured distance or level in meters or feet.
To change the measuring units, press the key ( ↑).
5.2 Distance to the bottom of the vessel
On the first screen, the distance from the installed instrument to the bottom of the vessel
is programmed “bottom distance”.
4.4 Echo loss indication
If the distance is longer than the maximum measuring distance, the instrument will not
receive reflected signal. It is also possible that if the product is not adequate for ultrasonic
measurement, there will be not received signal.
In this case the instrument will display 5 points instead of the measured value, and the
analog signal output will give 3.6 mA or 22 mA depending on how it is programmed (see
section 5.9 in page 19), indicating incorrect measurement due to echo not found.